compositions



106. COMPOSITIONS, gefefgncp UNITED STATES PATENT OFFICE.

AARON II. FREAR, OF WASHINGTON, DISTRICT OF COLUMBIA.

MANUFACTURE OF ARTIFICIAL STONE.

SPECIFICATION forming partof Letters Patent No. 506,847, dated October 17, 1893.

Application filed April 29 1893. Serial No. 472,409. (No specimens.) 9') f I I r I To all whom it may concern.- plate washing the surface or face of the arti- Be it known that I, AARON H. FREAR, of ficial stone thus manufactured, two or three 50 Washington,in the District of Oolumbia,have days after molding the same, with a weak soinvented a new and useful Artificial Stone; lution of my combination, or of shellac disand I do hereby declare the following to be solved in alcohol in the proportion of about a full, clear, and exact description thereof, one (1) pound of shellac to one (1) gallon of which will enable others skilled in the art to alcohol. 5 5 which my invention appertains to make and To produce a mastic or stucco, I add so use the same. much of my combination solution to lime,

t Myinvention consistsof the following coinsand, clay, or any earthy or siliceous mateposition, to wit: first, an aqueous solution of rial or -to mixtures or combinations thereof, litharge; se'cond,a sold'tion of shellac; third, as will be reduced by the solution to a pasty 60 a solution of glue; fourth, a solution of yellow consistency, so that it can be worked and aph r plied with a trowel. This compou d, when I In preparing the above composition, I emapplied in a plastic condition to any suitable ploy a saccharine solution formed by dissolvsurface, will firmly adhere thereto, and, upon ing sugar or molasses ip wateiyin the proporhardening, beiome perfectly waterproof. It 65 tion ofab'o'dt six (3) oreight (8) ounces of may be made to resemble stone so closely su ar or its equivalent of molasses in about as not to be distinguished therefrom. By

one gallon of water and then to this quanmaking the composition still thinner it may tityI add about one (1; pound of lithar e and be used as a substitute for paint with good mix thoroughly; second, three mantis of effect, and will also form a strong adhesive 70 water three (3) ounces of saleratus and one cement for stone and brick-work.

ll) pound of um shellac BQllQl until dis- In applying the stucco or mastic, as above solved; third,one poun o'f'" Iue(common) prepared, to buildings, whether of brick or in two (2) gallons of water ,Miwei until disstone,I first wash the surface of the latter solved; and fourth, one (I) poundof ochcr to with the combinatlonsolution preparatory to 75 two (2) gallons of wat r I then mix the above laying on the composition. together and beg n liu By a proper choice of the sand, orother ma- A firm an iir e one is produced by terial, forming the basis of my improved artimoistening aboutten (l0) quarts of h 'draulic ficial stone, &c., or by the use of pigments in cement twenty-five (25) quarts of sand or connection therewith, nearly every descrip- 80 W (1) quart of v sum MW tion of natural stone may be imitated, and Wand about three'fi'i'lfits of oxide of any variety of colors or shades obtained at iron with my composition, and then firmly pleasure. I

pressing the composition into molds of any Havmg thus described my invention, what desired form, either by machinery or hand, I claim as new, and desire to secure by Let- 85 with mallets or tamping rod. ters Patent, is

For the purpose of imitating marble, I 1. A composltlon of matter for the produc- ,use the oxide of zinc in place of the oxide of tion of artificial stone consisting of an aquei M ous saccharine solution of litharge, an alka- The blocks or other articles thus produced line solution of shellac, an aqueous solutior 10 will rapidly harden when removed from the of glue, and an aqueous solution of ocher molds, and are ready for use in a few days. hydraulic cement, sand or gravehgypsum or 5 I prefer to compress the materials by perplaster of parts and a metallic ox de.

cussion rather than by simple or lever press- 2. The method of preparing artificial stone me, consistingin,firstdissolvingsugar or molasses 5 'To produce a more perfect finish I contemin water, and adding thereto litharge, for the production of an aqueous saccharine soluhydraulic cement, sand or gravel, gypsum or tion of litharge, second in producing an alkaplaster of paris, and a metallic oxide, then 10 line solution of slella-c, by boiling the same molding and pressing as herein described.

in water with car onate of potash until dissolved, third in producing an aqueous solu- AARON FREAR" tion of glue, and an aqueous solution of Witnesses: ocher and finally mixing the said solutions G. M. COPENHAVER, at a boiling temperature, to which is added A. G. RAWLINGS. 

